baber/WOPTO huggingface dataset:
Patent GB-260065-A (GB)
IPC: F16H29/20
Abstract: 260,065. Gee, W. J. Aug. 11, 1925. Addition to 245,250. Variable-speed gearing according to the parent Specification comprises a complete screw or worm gearing 3 meshing with a like gear which is made up of segments 4 which yield in an axial direction to modify the velocity ratio, is controlled by a modified swash device. The driving-shaft 1 which carries the boss 5 upon which the segments 4 slide is connected by a universal joint 73 to a ring 60 which rotates within a non-rotary ring 7 inclinable about fixed trunnions 8 arms 9 integral with the segments 4 are connected to the ring 60 each by a link 61 which has a ball- and-socket joint 63 with that ring. Each link 61 can oscillate on a pivot 62 on the arm in a plane at right-angles to the shaft 1. Control is effected through a sector 68 and rack 69 by which the swash device is inclined.
Patent GB-1193189-A (GB)
Title: Fluid Control Valve for Copy Milling Machine.
Inventor: DECKEL HANS
IPC: B23Q35/36
Filed: 1967-06-06
Abstract: 1,193,189. Copy-milling. H. DECKEL and F. W. DECKEL. 6 June, 1967 [8 June, 1966], No. 26008/67. Heading B3K. An hydraulic control valve forming a tracer head for a copy milling machine has a sector shaped control slide 36 having control lands p<SP>1</SP>, p<SP>11</SP>, t<SP>1</SP>, t<SP>11</SP>, co-operating with two pairs of control ports 22<SP>1</SP>, 24<SP>1</SP>, 26<SP>1</SP>, 28<SP>1</SP> for two hydraulic motors or cylinders adapted to control the movements in two directions at right angles of the tool or workpiece, the ports of each pair being disposed closely adjacent to each other on a radius of the valve housing and the two radii being at right angles to each other. The tracer or stylus rod 46 is mounted for movement parallel to its own axis by ball bearing members 50, the extent of lateral movement being adjustably limited by a bale member 60 located between recesses in the upper end of the rod 46 and the lower end of an axially and laterally adjustable bolt 62. The oil supply and return connections (32), 34 are formed in a plate member 18 above the control slide 36 while the two pairs of ports 22<SP>1</SP>, 24<SP>1</SP> and 26<SP>1</SP>, 28<SP>1</SP> are located in a plate member below the slide 36. The control lands t<SP>1</SP>, t<SP>11</SP> P<SP>1</SP>, p<SP>11</SP> are formed as portions of concentric circles about the valve axis as are also the inner and outer boundaries of the ports; this feature allows the slide 36 a measure of play rotationally but excessive play is prevented by stop ins 43. Holes 40 through the slide communicate with pockets 38, 42 in the upper face of the valve slide to balance the oil pressure thereon and thus minimize friction. The control lands are formed to have negative overlap of the valve ports. The connection between the stylus rod 46 and the slide 36 is by means of a spherical surface on the rod upper end engaging above in the valve slide.
Patent GB-888309-A (GB)
Title: Improvements in screw fasteners
Inventor: KNOHL FRIEDRICH KARL
IPC: F16B1/00
Filed: 1958-04-30
Abstract: 888,309. Self-tapping screws. ILLINOIS TOOL WORKS. April 30, 1958, No. 26015/61. Divided out of 888,308. Class 83 (3). [Also in Group XXV] A self-tapping screw 22 has cutting edges 54, 66 and 68, and tips 55 and 57, to facilitate initial penetration and subsequent screwing of workpiece 14.
Patent GB-1347821-A (GB)
Title: Multiple moulding of plastics optical lenses
IPC: B29C33/30
Filed: 1972-06-05
Abstract: 1347821 Multiple moulding of lenses ASHLAND OPTICAL CORP 5 June 1972 [4 June 1971] 26064/72 Heading B5A A plurality of optical plastics lenses are cast simultaneously in apparatus comprising at least four optical mould elements, a resilient holder having groove formations to engage the periphery of, and thereby position, the mould elements spaced from one another to define mould cavities therebetween, a rigid holder engaging the exterior of the resilient holder to prevent distortion thereof, and an aperture extending through the holders to supply moulding material. As shown in Fig. 1, mould elements 11 are placed in grooves 12 in resilient holder 13 having a slit 15 therein, holder 13 being held in rigid holder 14 having a lower half 16, upper half or cover 17 pivoted thereto at 22 and ends 18, 19. Gaskets 16a, 16b, 18a, 19a are provided. Cover 17 has holes 17a, 17b, one of which serves to supply moulding material, the other acting as a vent during filling. After assembly, parts 16, 17 are closed, latched at 33, 36 and tightened by knobs (37). Moulding material is supplied through aperture 17a or 17b and slit 15 and the assembly placed in an oven to set the thermosetting plastics material.
Patent GB-652502-A (GB)
Title: Improvements in or relating to ovens
IPC: A23B4/052
Filed: 1948-10-06
Abstract: 652,502. Drying fish. HALL, Ltd., J. F., HALL, J. F., HALL, P. S., and WHITE, W. H. Oct. 6, 1948, No.26079. [Class 34(ii)] [Also in Group VI] An oven for smoking fish comprising a tunnel 1 through which the fish is conveyed by a conveyer belt 4 has extensions 8, 8a for drying the fish as it enters and leaves the oven. Means for heating the oven may be provided under the floor or close to the walls.
Patent GB-630667-A (GB)
Title: Improvements in electroacoustic transducer
IPC: B06B1/06
Filed: 1944-12-29
Abstract: 630,667. Electro-acoustic transducers. SUBMARINE SIGNAL CO. Dec. 29, 1944, No. 26149. Convention date, May 3, 1940. [Class 40 (iv)] In an electro-acoustic transducer for underwater use, piezo-electric crystals 12, Figs. 2 and 3, are mounted on one or both faces of ribs 11 acting as vibratory reeds on members 9 attached to the inside of a relatively thick metal plate 1 which is provided with a thin annular portion 3 to ensure piston-like movement. The crystals 12 are attached to the ribs 11 in such a manner that the mechanical axes lie in the same plane as the plate 1 so that expansions and contractions cause bending in a direction normal to the surface of the plate 1, thereby transmitting vibration to it. The mechanical axis of the upper and lower crystals are placed respectively at 90 degrees to each other so that when excited in phase the top crystals will contract while the lower crystals expand and vice versa. The length of the reeds are made to correspond to a half-wave length of the frequency it is desired to receive or transmit. In an alternative construction shown in Fig. 5, ribs 28 with a height of approximately a quarter-wave length project from the surface of the plate 1 and have crystals 29 attached to each side in such a manner that the mechanical axes are normal to the plate 1 and in similar phase. Both of the alternative constructions are used in modifications to produce cylindrical vibrating surfaces. In one form for external vibrations, the elements are arranged on the inside of the cylinder, while in another form where it is desired to subject the contents of a vessel to vibration the elements are arranged on the outside of the cylinder. To reduce radial stiffness of the cylindrical member axial grooves may be cut in the radiating surface, which may also have circumferential grooves so that the surface is made up of a plurality of surfaces. Specification 279,878, [Class 118 (ii)], is referred to.
Patent GB-326516-A (GB)
Title: Process for the preparation of colloidally dispersed materials, especially pigments in different media
IPC: C09C3/00
Filed: 1928-09-12
Abstract: 326,516. Imperial Chemical Industries, Ltd., Hailwood, A. J., Shepherdson, A., and Stewart, A. Sept. 12, 1928. Emulsions, making.-The colloidal dispersion of a substance in non-aqueous media, practically transparent to the unaided eye, is effected by the emulsification with a non-aqueous medium of an aqueous solution of a water soluble derivative, capable of reconversion into the insoluble form of the body to be dispersed, or of an aqueous solution of chemicals which when caused to react together with another aqueous solution of chemicals in the presence of the non-aqueous media, produces the insoluble body, and when necessary reconverting the water soluble into the water insoluble form. On breaking these emulsions the precipitate collects in the non- aqueous media which include aniline, oil's and .cellulose ester solutions. The substances dispersed include dyestuffs, insoluble azo dyestuffs, and other precipitable substances including inorganic materials. Emulsifying agents may be employed and in place of the desired non- aqueous medium a solution of this medium in another solvent may be employed, the solvent being subsequently separated. In examples, (1) A solution of linseed oil in benzene is emulsified with water and ammonium oleate, an aqueous solution of the leuco compound of Caledon Brown R. obtained by reduction of the dyestuff with sodium hydrosulphite, is added and stirred vigorously, oxidation is effected preferably by air, the emulsion is broken by addition of hydrochloric acid, the linseed oil containing the dyestuff in a transparent condition; (2) Castor oil is emulsified with ammonium oleate and water, an aqueous solution of the leuco compound of Duranthrene Brilliant Violet R prepared as before is added with stirring, after oxidation the castor oil is separated, giving a product suitable for use in nitrocotton lacquers and finishes; (3) Linseed oil is emulsified with aqueous potassium chromate and sodium oleate, aqueous barium chloride is added, and on breaking the emulsion the linseed oil contains the dispersed barium chromate; (4) Linseed oil and ammonium oleate is emulsified with an aqueous solution of the neutralised diazo compound of 2-chloro-4-toluidine-5- sulphonic acid, an aqueous solution of B naphthol containing sodium hydroxide is added at 5‹ C, and after breaking the emulsion the linseed oil contains the dispersed dye. Specification 169,276 is referred to.
Patent GB-151270-A (GB)
Title: Improvements in weaving looms
IPC: D03D49/60
Filed: 1920-09-13
Abstract: 151,270. Giehler, F. Sept. 16, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Shuttle-races; shuttles; shuttle guards.-The shuttle of a loom is guided in the shed by means of a fingers w, Figs. 1 and 3, on movable slotted plates f pivoted at x to the reed angle-irons i, teeth c, Figs. 1, 1<a>, and 3, on the angle-irons restraining the upward and downward movements of certain warp threads k<2> when the shed opens and thereby leaving clearance spaces o. The plates f are rotated by means of pins on slides d so as to insert the fingers through these spaces o. The shuttle s has grooves to fit the fingere w. In a modification, the slotted plates are replaced by toothed combs, and the warp-guiding teeth, which may be of triangular or of rectangular formation, are formed on rails fixed to the reed.
Patent GB-208799-A (GB)
Title: Improvements relating to miners' electric lamps
IPC: F21L4/00
Filed: 1922-09-28
Abstract: 208,799. Thor Electric Safety Lamp Co., Ltd., and Stretton, T. Sept. 28, 1922. Battery lamps.-In a miner's lamp, the well glass a is recessed at a<1> to form a weakened part, and the recess receives a spiral spring @e so that upon fracture of the glass the spring causes outward movement of the lamp and so breaks the circuit. The spring may be sweated to the reflector b and the lower end may be connected to a contact-segment f<1>. Specification 145,913 is referred to.
Patent GB-888981-A (GB)
Title: Improvements in or relating to voice frequency signalling receivers
Inventor: CHITTLEBURG WILLIAM FRANCIS SI
IPC: H04Q1/446
Filed: 1960-07-28
Abstract: 888,981. Voice immunity circuits. STANDARD TELEPHONES & CABLES Ltd. July 28, 1960, No. 26236/60. Class 40 (4). In a V.F. receiver of the single frequency type, means therein for generating an output signal for the operation of a telephone exchange, is responsive only when a tone at the signalling frequency exceeds a specified level. Voice frequency input signals pass through a transistor amplifier 1 and amplitude limiter 2 to a dividing network 3, e.g. a transformer. Assuming that speech or excessive line noise is being received, then after any harmonics of the signalling frequency have been removed in a lowpass filter (L.C. type) 4, the signals are passed through a common base transistor amplifier 5, a band stop filter 6, which removes any signalling frequency present, and a negative feedback amplifier 7, using a transistor connected as an emitter follower, to a detector 8. The detected signal, after being limited by a suitably arranged pair of diodes at 9 and delayed in a C.R. network, is applied as a guard voltage to a transistor amplifier 10 in the signalling circuit. It is stated that the guard voltage especially when developed by excessive line noise is limited sufficiently to allow it to decay rapidly so as to reduce distortion of a first incoming signal. A common base type transistor amplifier 10, which contains an acceptor resonance circuit tuned to the signalling frequency, operates in response to a tone at the signalling frequency and this signal after detection at 11 is applied as a negativegoing pulse to the base of a transistor which acts as a level filter 12. If the base voltage becomes lower than the emitter voltage, i.e. the tone at the signalling frequency is of sufficient amplitude, the transistor bottoms and a relay 13 is operated. In order to reduce duration distortion of the signal a condenser in a relay slugging circuit is charged by a portion of the collector current feeding the relay and, at the end of the signalling pulse, it discharges via a rectifier to keep the relay operated for a short time afterwards.
Patent GB-707206-A (GB)
Title: Material shedder for draw bench tongs
Inventor: TURNER RALPH RAYMOND
IPC: B21C1/32
Filed: 1952-10-20
Abstract: 707,206. Drawing. UNITED WIRE & SUPPLY CORPORATION. Oct. 20, 1952, No. 26275/52. Class 83 (4) Tongs and grippers.-A draw bench has a gripper head 16, Fig. 1, which opens to permit endwise passage of the work 28 as it springs free from the die 27 and has deflectors 13 which direct the end of the work out of the grippers and into a guide way 12 along which the work slides to expend its stored energy. A draw bench with three pairs of grippers has fixed grippers 20, Fig. 4, and movable grippers 21 keyed on shafts 22 and rotated to engage the work 28 by rack and pinion through a rod 25, Fig. 1, yieldingly held in the die support 26. On release from the dies 27 each workpiece forces its gripper 21 to open and its end engage one of the portions 31, Fig. 3, of the deflector 13 which directs the work downwardly into the race way 12. In modifications the deflectors 15, Fig. 10, are applied to carriages drawn. by chains and portions 60 deflect the work upwards out of the grippers. Another face 64 of the deflector guides the end sideways where it drops through a slot 66 into a race-way arranged at the side of the carriage.
Patent GB-208803-A (GB)
Title: Improvements in or relating to alloy steels
IPC: C22C38/40
Filed: 1922-09-29
Abstract: 208,803. Hatfield, W. H., and Green, H. Sept. 29, 1922. Alloys.-Steel alloys having improved corrosionresisting properties contain 18-24 per cent of nickel, 2-5 per cent of chromium, and up to 1.5 per cent of carbon. An example contains 20 per cent of nickel and 3 per cent of chromium.
Patent GB-532839-A (GB)
Title: Improvements relating to the attaching of crane hooks to sea borne craft such as seaplanes, lifeboats, and the like
IPC: B66D1/52
Filed: 1939-09-21
Abstract: 532,839. Hook couplings for cranes. CLARKE, CHAPMAN & CO., Ltd., and WOODESON, J. B. Sept. 21,1939, No. 26322. [Classes 78 (iv) and 78 (v)] In automatic couplers for attaching the lifting cable of a crane to water-borne craft in which a hook operated by an auxiliary power-operated winch is first attached to the craft and then draws the parts of the coupler together, means is provided for more readily bringing the hook by hand into coupling engagement with the craft. Fig. 1 shows a coupler, the upper part 1 of which is permanently attached to the lifting cable, and the lower part 2 of which is connected to the upper by catch mechanism controlled by handles 19 (not shown). When the catches are released the lower part 2 is suspended by cables 3 the upper ends of which pass over the jib head to the auxiliary winch and the lower ends pass round pulleys 4 on the part 2 for attachment to two drums 5 mounted in part 1. Each drum 5 contains two spiral springs connected together in series, the outer end of one spring being connected to the drum 5 and the inner end of the other to the drum shaft 12. A set of co-acting arms 16 loose on the shaft 12 have one end arm engageable by an arcuate rib 15 on the drum 5 and the other end arm engageable by a stop 17 on the part 1, to form a connection between shaft and drum which is through a spring for a few revolutions and then direct. The spindle 12 can be turned manually to wind up both springs gradually till all the arms 16 are arrested by the stop 17, and thereafter pre-winding can be carried on sufficiently to allow the springs to bear the weight of the part 2. The part 2 can then be readily pulled down, this resulting in further winding up of the springs till the arms 16 have been carried round successively in the opposite direction by the other end of rib 15 and are collectively arrested by the stop 17. Actuation of the auxiliary winch will then positively pull the coupler parts into engagement.
Patent GB-847744-A (GB)
Title: Improvements relating to shaft furnaces
Inventor: OSANN BERNHARD
IPC: C21B7/24
Filed: 1958-08-15
Abstract: 847,744. Indicators for shaft furnaces. HUTTENWERK SALZGITTER A.G. Aug. 15, 1958, No. 26331/58. Class 51 (2). Apparatus for controlling the operation of a blast furnace 1 comprises a probe in the form of a cranked tube 4 pivotally mounted in a stuffing box 7 on the cover 5 and the charging platform 6, and swinging about an axis substantially coincidental with the shaft periphery in an arc extending through the centre of said shaft. The probe may be moved vertically and also automatically in sequence to a number of positions on the aforementioned arc. It may be used to sample effluent gases and also may have a thermo-responsive element mounted in its inlet end. It may be cooled by water, compressed air or gas. A further probe is preferably mounted diametrically opposite the first, Fig. 2 (not shown).
Patent GB-1282399-A (GB)
Title: Improvements in friction welding mesh
IPC: B23K20/12
Filed: 1971-04-19
Abstract: 1282399 Welding by pressure EVG ENTWICKLUNGS U VERWERTUNGS GmbH 7 April 1970 [7 April 1970] 26374/71 Heading B3R In a friction welding process for manufacturing welded wire mesh a transverse wire QD is placed across spaced stationary longitudinal wires LD, the transverse wire QD is tensioned and then reciprocated in the direction of its length while pressed against the longitudinal wires at the crossing points; when welding temperature is reached the reciprocation is stopped, thrust on the transverse wire increased and maintained till the welds have hardened and the mesh advanced one step in readiness for welding the next transverse wire. Reciprocation may be applied to the transverse wire by an eccentric drive mechanism 4, 9, the wire being held at its ends by grippers 7, 7<SP>1</SP>. A further eccentric 5 is used to apply tension prior to reciprocation of the wire. Pressure for friction welding at the individual cross-over points is applied by grooved rollers carried by spring- loaded thrust rods 20 mounted on a thrust beam 11, the loading of the springs 21 being individually adjustable and the thrust rods etc. being adjustable to the required spacing on the beam 11. Thrust shoes which grip and move with the transverse wire QD may be used instead of the rollers 25. Thrust is created by lowering the beam 11 towards the plane of the welded wire mesh. Reciprocation may be applied to the transverse wire in the direction of the longitudinal wires in addition to the transversely directed reciprocation, the phase relation of the two motions being arranged to provide a resultant circular motion. The longitudinal component of this motion may be effected by pivotally oscillating the beam 11 or reciprocating it or preferably by oscillating the thrust rods (Fig. 3-8, not shown). Two or more transverse wires may be welded to the longitudinals simultaneously and the neighbouring wires may be oscillated in opposite directions. The longitudinal wires may be notched at the cross-over points and cutters may be mounted on the thrust beam for this purpose. Longitudinal wires of different diameters may be used in which case individual adjustment of the loading of the thrust rods ensures equal contact pressure at the crossing points. Alternative means for tensioning the transverse wire are referred to. The longitudinal and transverse wires may be fed from coils the transverse wires being cut to length before or after welding.
Patent GB-1270649-A (GB)
Title: Hinged assembly for coupling tractor and trailer
IPC: B62D53/04
Filed: 1970-06-02
Abstract: 1,270,649. Hinged gooseneck for trailer. TALBERT MFG. Inc. 2 June, 1970, No. 26457/70. Heading B7B.  A hinged assembly 11 for connecting a low bed trailer to a tractor, has a draft member 32 comprising a front portion 39 engageable with the fifth wheel 20 of a tractor 13 and a rear portion 38 extending downwardly and rearwardly of the front portion 39 to a pivot 54 connecting it to a base member 33 which has apertured plates 58 at its lower front edge for attachment to the front of the trailer 12. Retaining pins 61 extend through plate 62 of the base member 33 and into recesses 63 in the deck 24. Hydraulic actuators 65-68 (66-68, not shown) are connected between the front portion of draft member 32 and the top front edge of base member 33 to enable these members to be rotated relative to one another so raising or lowering the front of the trailer. A safety lock 78, which may be pneumatically operated, is provided to prevent relative rotation of the base and draft members when in the locked position. A pneumatically operated arm 42 can pivot to a position to support draft member 32 when the trailer is disconnected. Folding ramps 31 are provided at the front end of the trailer and are spaced so that the hinged assembly is received therebetween when attached to the trailer.
Patent GB-444194-A (GB)
Title: Improvements in or relating to navigation aiding wireless systems
IPC: G01S1/02
Filed: 1934-09-14
Abstract: 444,194. Directive wireless signalling. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Sept. 14, 1934, No. 26460. Convention date, Oct. 11, 1933. [Class 40 (v)] In a radio navigational system for assisting aeroplanes to land under conditions of poor visibility, the landing beam L, Fig. 2, radiated from the transmitter S is traversed by two vertical beams from transmitters V, H to notify the pilot of his height and distance from the aerodrome. The arrangement is distinguished from that disclosed in Specification 377,624, where a " zero " indication is given. As the landing-line L may be " swung " to right or left of a central position, i.e. between the limits Z<11>, Z, Z<1> in Fig. 3, the vertical beams from the transmitters H, V are similarly swung so that they cut the landing line at equal heights h<11>v, hv, h<1>v. The modulation signal on the beam V energizes a valve relay CV, Fig. 5, on the aeroplane which operates a drop-indicator RV, and through a holding relay ev, maintains it in position. The tone frequency from the second beam transmitter H similarly operates a drop-indicator Rh, the arrangement preferably being such that the second relay can only be operated in sequence after the first.